Dead key
- Thread starter thanatu55
- Start date
Get all of the keys you have together.
Sit in car with doors and windows closed.
Insert any of the keys into ign, and turn to pos 2 for less than 4 seconds and then off and remove key.
Then, within 30 seconds, take a key and hold down the lock button whilst pressing and releasing the unlock button 3 times in succession. The car should acknowledge acceptance of the key by locking and unlocking the central locking. Repeat with any other keys you have. When done, insert any key into ign and turn to pos 2 again, and back off, this tells the car that you have finished and stores the keys. Any keys you do not program at this stage will be deleted from the car's memory.
Mike
Sit in car with doors and windows closed.
Insert any of the keys into ign, and turn to pos 2 for less than 4 seconds and then off and remove key.
Then, within 30 seconds, take a key and hold down the lock button whilst pressing and releasing the unlock button 3 times in succession. The car should acknowledge acceptance of the key by locking and unlocking the central locking. Repeat with any other keys you have. When done, insert any key into ign and turn to pos 2 again, and back off, this tells the car that you have finished and stores the keys. Any keys you do not program at this stage will be deleted from the car's memory.
Mike
Need to check the key is actually transmitting. I have a tester if you're in the area. Did none of the keys get the confirmation? If not it probably wasn't in programming mode. You must go from key in, on and off within the 4 seconds to activate it, and the doors and windows must be closed. It is the correct procedure, I've done loads.
Mike
Mike
thanatu55 said:Thanks for the advice Mike, I gave it a go following those instructions but I got nothing
I tried numerous permutations to make sure I was following them right (ie. varying how many seconds etc.). Hope I don't end up having to get a new key!
You have my sympathy, I was plagued with this problem for weeks, I also tried various methods without success. In my case the keys were pairing from inside the car and wouldn't work outside the car. After much head scratching I discovered my problem lay in the interior mirror (where the receiver is located). £35 off ebay for a replacement S/H mirror solved it.
When you say "but I got nothing", when following Mike's procedure do you get the acknowledgement of pairing after pressing key 3 times and releasing?
Is your other key working or do you just have one?
After replacing the battery, did you charge the key up (when I replaced mine I bought two, one had a terminal voltage of 3.2V the other 2.7V).
It may be worthwhile trying it with the key in very close proximity of the interior mirror. In my case the keys would work within 60cm from inside the car but only 15cm directly in front of the mirror from outside the car.
Magicarcher said:thanatu55 said:Thanks for the advice Mike, I gave it a go following those instructions but I got nothing
I tried numerous permutations to make sure I was following them right (ie. varying how many seconds etc.). Hope I don't end up having to get a new key!
You have my sympathy, I was plagued with this problem for weeks, I also tried various methods without success. In my case the keys were pairing from inside the car and wouldn't work outside the car. After much head scratching I discovered my problem lay in the interior mirror (where the receiver is located). £35 off ebay for a replacement S/H mirror solved it.
When you say "but I got nothing", when following Mike's procedure do you get the acknowledgement of pairing after pressing key 3 times and releasing?
Is your other key working or do you just have one?
After replacing the battery, did you charge the key up (when I replaced mine I bought two, one had a terminal voltage of 3.2V the other 2.7V).
It may be worthwhile trying it with the key in very close proximity of the interior mirror. In my case the keys would work within 60cm from inside the car but only 15cm directly in front of the mirror from outside the car.
Thanks I'll have a look into the mirror as you say, it's something I haven't tried. When I said I got nothing I mean literally nothing at all, no acknowledgement or anything. I figured it was a battery issue because it seemed to die gradually, sometimes it would work and sometimes it wouldn't. Eventually it stopped completely. I tried all the tips and tricks with things like toothbrush chargers and what have you but it got me nowhere, so naturally a new battery seemed the logical solution but nope.
Maybe it is the actual receiver and not the key like you say. I'll report back if I ever get it sorted.
Edit: I forgot to mention I only have one key, no spare for some reason. I've never thought to question that until now.
thanatu55 said:
What you are describing is exactly what happened to me. It started off intermittent, then got worse then packed up, I too put it down to the battery. I was a little more fortunate because I clocked that it was working when very close to the mirror.
Apologies for resurrecting an oldish thread but just today I had a problem with my keys. Essentially both would start the car but neither would lock/unlock remotely. Having followed the above noted procedure I too didn't meet with any success. However a little bit more searching and I came across this web site: http://www.programyourkeys.com/BMW_Z4_Key_Remote_Control_Fob_Programming.html
I tried Method 3 and hey presto both keys are now operating as they should. Not sure whether age has got anything to do with matters but mine is a 2008 car.
Hope this helps when other processes don't do it for you.
I tried Method 3 and hey presto both keys are now operating as they should. Not sure whether age has got anything to do with matters but mine is a 2008 car.
Hope this helps when other processes don't do it for you.
